Lactation records of US Holstein cows were analyzed with mixed models to determine the
effect of dystocia on 305-d milk, fat, and protein yields, days open, number of services, and …

Fitness and fertility traits of dairy cattle are of increasing importance and are often measured
on a discrete scale. The development and application of generalized linear mixed models to …

The past quarter-century in genetic evaluation of dairy cattle has been marked by evolution
in methodology and computer capacity, expansion in the array of evaluated traits, and …

Abstract The Multiple-Trait Gibbs Sampler for Animal Models programs were extended to
allow analysis of ordered categorical data using a Bayesian threshold model. The algorithm …

A standardized threshold model was used to estimate herd variability and the impact of
some risk factors on the incidence of retained placenta, metritis, ketosis, ovulatory …

Repeated records on fertility, litter size, and ovulation rate of Rambouillet ewes and on
fertility and litter size of Finnsheep ewes were used to estimate heritabilities and …

A method based on the analysis of recursive multiple-trait models was used to 1) estimate
genetic and phenotypic relationships of calving ease (CE) with fertility traits and 2) analyze …

Abstract Calvings of 106,751 Israeli Holstein heifers were analyzed for dystocia and calf
mortality, scored dichotomously, and a composite trait, scored trichotomously. Dystocia was …

The objective of this research was to estimate genetic parameters for a multiple-trait
evaluation of dystocia (DYS), perinatal mortality (PM), birth weight (BWT), and gestation …

Body measurements (heart and paunch girths, wither height, chest depth, pelvic length and
width, and body length), body weight, and calving evaluation data (calf birth weight, calf sex …